Update info and synch example test.

README.TESTING

@@ -20,16 +20,16 @@ as follows
 ./sapi/cli/php -c /path/to/php.ini/ run-tests.php [ext/some_extension_name]
 
 
-
 [Which "php" executable "make test" look for]
 ---------------------------------------------
+ You must use TEST_PHP_EXECUTABLE environment variable to explicitly
+select the php executable to be used to run the tests. That can either
+be the CLI or CGI executable.
+
  "make test" executes "run-tests.php" script with "php" binary.  Some
 test scripts such as session must be executed by CGI SAPI. Therefore,
 you must build PHP with CGI SAPI to perform all tests.
 
- If PHP is not build with CGI SAPI, "run-tests.php" script uses CLI
-SAPI. Tests that may not executed by CLI SAPI will be skipped.
-
 NOTE: PHP binary executing "run-tests.php" and php binary used for
 executing test scripts may differ. If you use different PHP binary for
 executing "run-tests.php" script, you may get errors.
@@ -42,7 +42,7 @@ you would like to test with other configuration file, user
 "run-tests.php" script.
 
 Example:
-./sapi/cli/php -c /path/to/php.ini/ ext/standard
+./sapi/cli/php -c /path/to/php.ini/ run-tests.php ext/standard
 
 If you use php.ini other than php.ini-dist, you may see more failed
 tests.
@@ -55,10 +55,11 @@ by looking all directory named "tests". If there are files have "phpt"
 extension, "run-tests.php" takes test php code from the file and 
 executes it.
 
- Tester can easily executes tests selectively with as follows.
+ Tester can easily execute tests selectively with as follows.
 
-Example:
+Examples:
 ./sapi/cli/php -c /path/to/php.ini/ run-tests.php ext/mbstring
+./sapi/cli/php -c /path/to/php.ini/ run-tests.php ext/mbstring/020.phpt
 
 
 [Test results]
@@ -69,12 +70,19 @@ executed to the test script directory. For example, if
 ext/myext/tests/myext.phpt is failed to pass, following files are 
 created:
 
-ext/myext/tests/myext.out  - output from test script
-ext/myext/tests/myext.exp  - expected output
-ext/myext/tests/myext.php  - test script executed
+ext/myext/tests/myext.log   - log of test execution (L)
+ext/myext/tests/myext.exp   - expected output (E)
+ext/myext/tests/myext.out   - output from test script (O)
+ext/myext/tests/myext.diff  - diff of .out and .exp (D)
 
- Tester can verify these files, if failed test is actually a bug
-or not. 
+ Tester can verify these files, if failed test is actually a bug or not. 
+
+NOTE: The files generated by tests can be selected by setting the
+environment variable TEST_PHP_LOG_FORMAT. For each file you want to be
+generated use the character in brackets as shown above (default is LEOD).
+
+NOTE: You can set environment variable TEST_PHP_DETAILED to enable
+detailed test information.
 
 
 [Creating new test files]
@@ -87,19 +95,20 @@ has following format. Here is a actual test file from iconv module.
 UCS4BE to ASCII
 --SKIPIF--
 <?php include('skipif.inc'); ?>
---POST--
---GET--
 --FILE--
 <?php include('002.inc'); ?>
 --EXPECT--
 &#97;&#98;&#99;&#100;
 abcd
 ===== end of ext/iconv/002.phpt =======
 
+ As you can see the file has the following sections:
+
 "--TEST--" is title of the test.
-"--SKIPIF--" is condition when to skip this test.
-"--POST--" is POST variable passed to test script.
-"--GET--" is GET variable passed to test script.
+"--SKIPIF--" is condition when to skip this test (optional).
+"--POST--" is POST variable passed to test script (optional).
+"--GET--" is GET variable passed to test script (optional).
+"--INI--" each line contains an ini setting e.g. foo=bar (optional).
 "--FILE--" is the test script.
 "--EXPECT--" is the expected output from the test script.
 
@@ -141,12 +150,9 @@ abcd
 ?>
 === end of ext/iconv/002.inc ===
 
-Test script and skipif code may be directly write into *.phpt.
+Test script and skipif code may be directly written into *.phpt.
 However, it is recommended to use other files for ease of writing
-test script. For instance, you can execute test script under 
-ext/iconv as follows:
-
-./sapi/cli/php -c /path/to/php.ini/ ext/iconv
+test scripts. 
 
 
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